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EP0239525B1 - Disposition pour la liaison logique de signaux mécaniques - Google Patents

Disposition pour la liaison logique de signaux mécaniques Download PDF

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Publication number
EP0239525B1
EP0239525B1 EP87730025A EP87730025A EP0239525B1 EP 0239525 B1 EP0239525 B1 EP 0239525B1 EP 87730025 A EP87730025 A EP 87730025A EP 87730025 A EP87730025 A EP 87730025A EP 0239525 B1 EP0239525 B1 EP 0239525B1
Authority
EP
European Patent Office
Prior art keywords
plunger
slide
plungers
arrangement according
arrangement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87730025A
Other languages
German (de)
English (en)
Other versions
EP0239525A1 (fr
Inventor
Peter Bohnen
Ludvik Godesa
Reinhard Dipl.-Ing. Kugler
Ulrich Marquardt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0239525A1 publication Critical patent/EP0239525A1/fr
Application granted granted Critical
Publication of EP0239525B1 publication Critical patent/EP0239525B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
    • H01H9/262—Interlocking, locking, or latching mechanisms for interlocking two or more switches using flexible transmission elements, e.g. Bowden cable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20207—Multiple controlling elements for single controlled element
    • Y10T74/20238—Interlocked

Definitions

  • the invention relates to an arrangement for logically linking mechanical signals, which are provided in the form of limited travel paths, for obtaining at least one output variable from one or more input variables.
  • the object of the invention is to provide the most important safety-related dependencies mechanically, with the immediate vicinity of the devices or system parts to be brought into mechanical dependence not being a condition and a good mechanical efficiency also being able to take into account several conditions at the same time.
  • the object is achieved in that the tappets assigned to the input variables and the output variables are arranged spatially parallel to one another and in that a slide which is likewise displaceably guided parallel to the direction of displacement of the tappets for force transmission; supply between the plungers is provided.
  • At least one plunger for a first input signal can be guided on the carriage and at least one plunger for an output signal guided on the carrier can be arranged approximately opposite this, and the carriage can be provided with a work surface for at least one for the application of a further input signal Have plunger, which is also guided on the carrier.
  • This arrangement works in such a way that a displacement of the plunger provided for this purpose occurs only when the plunger of the one input signal guided on the carrier moves the slide and the plunger guided on the carriage corresponding to the second input signal is actuated becomes. If appropriate movements are required, this AND gate can also be used with double assignment for the input signals and the output signals, so that the arrangement has a total of six plungers.
  • An OR operation can be achieved in such a way that the slide has a working surface for two or more plungers for input signals and a further working surface for a plunger carrying the output signal.
  • the function is that the slide for the output signal is actuated by the slide whenever one of the slide for the input signals is moved.
  • a logically inverted signal can be obtained in that a plunger for an input signal and a plunger for an output signal are arranged side by side and that the slide has a working surface for each of the plungers and is acted upon by the force of a spring. This force biases the tappet for the output signal, which corresponds to a positive output signal. If a positive input signal is now initiated by actuating the corresponding plunger, the slide is moved against the force of the spring and the plunger for the output signal is relieved. This corresponds to a signal reversal.
  • the plungers can be part of wire releases, the threaded pieces of which are fastened in openings provided for this purpose in the carrier.
  • wire releases are flexible transmission elements that allow devices or system parts that are not directly adjacent to one another to be connected to one another. In this way, for example in an electrical switchgear, up to three circuit breakers and associated cell doors can be interlocked.
  • the total mechanical energy expenditure to be provided is relatively low because the logical arrangements described work with a good degree of mechanical knowledge.
  • the carrier is part of a housing that has uniform dimensions for the designs of the device as an AND gate, OR gate or as an inverter and with openings for fastening as Single device or for common attachment in pairs or multiple arrangement is provided.
  • Such housings can then be attached side by side or one above the other.
  • Figures 1 and 2 show an AND gate for two first and second inputs and two outputs in two mutually perpendicular views.
  • FIGS. 4 and 5 show an inverter, likewise in two views at right angles to one another.
  • FIG. 6 shows a mechanical circuit diagram for interlocks within an electrical switchgear.
  • the AND element 1 shown in FIGS. 1 and 2 has a frame-like carrier 2, to which a number of wire releases are attached.
  • Two wire releases 3 and 4 are provided for the input variables E1 / 1 and E1 / 2, while the further wire releases 5 and 6 are used to supply further input variables E2 / 1 and E2 / 2.
  • a total of four wire releases 2 to 6 are assigned two further wire releases 7 and 8 for output variables A1 and A2.
  • the wire releases have an end piece provided with an external thread and a flexible jacket in which a wire rope or a similar flexible transmission element is guided. A plunger guided in the end piece, which protrudes from the opening of the end piece, is connected to this transmission element.
  • the flexible jacket is here designated 10 and the soul guided therein with 11.
  • 12 is the end piece, which is provided with an external thread and serves as a guide element for the plunger 15, and which is guided through an opening 13 in the carrier 2 and is fixed opposite it by nuts 14.
  • a slide 16 is guided in a suitable manner on the carrier 2 in the same direction (arrow 18) in which the plungers of the wire releases 3, 4, 5, 6, 7 and 8 can also be moved.
  • the carrier 2 is provided with an elongated hole 17 through which mushroom-shaped pins 20 attached to the carriage 16 protrude.
  • the carriage 16 has a working surface 21 which faces the plungers of the wire releases 3 and 4, which feed the input signal E1 to the arrangement.
  • An angled arm 22 of the carriage 16 carries the two further wire releases 5 and 6 for the input signal E2.
  • the plungers of these wire triggers do not act directly on the plungers of the wire triggers 7 and 8 for the output signal A, but rather by inserting a lever 24 which can be pivoted about a pin 23 and which accordingly has a working surface 25 for the plungers of the wire releases 5 and 5 on its opposite sides 6 and has a stepped working surface 26 for the plunger of the wire releases 7 and 8.
  • a lever 24 which can be pivoted about a pin 23 and which accordingly has a working surface 25 for the plungers of the wire releases 5 and 5 on its opposite sides 6 and has a stepped working surface 26 for the plunger of the wire releases 7 and 8.
  • FIG. 1 shows, there is a variable offset, designated 27, between the points of engagement of the tappets on the opposite sides of the lever 24, which causes a translation of the path between the input signal and the output signal.
  • FIGS. 1 and 2 show, the directions of movement of the plungers of all the wire releases are arranged parallel to one another. This results in an essentially direct power transmission between the input variables and the output variable with the result of good mechanical efficiency. This is practically not affected by the pivotable lever 24, since the game of the plunger of the wire release in the leading end pieces is greater than the relative movement of the plunger to the lever due to the pivoting of the lever 24, so that in the work surfaces 25 and 26 of the Lever 24 steps or shallow depressions 28 can be provided for receiving the rounded ends of the plunger. Such depressions are shown in FIG. 2 and designated 28.
  • the OR gate 30 shown in FIG. 3 corresponds in principle to the previously explained AND gate 1 in that a carrier 31 is provided for receiving wire releases.
  • Input signals E1, E2 or E3 can optionally be introduced into the OR gate 30 through one of the wire releases 32, 33 or 34.
  • the plungers of these wire releases stand on a work surface 35 Carriage 36 opposite, which is guided in a straight line on the carrier 31 and which has a fixed transmission pin 37 on its working surface 38 opposite the working surface 35.
  • This interacts with a working surface 40 of a pivotably mounted lever 41, whose further, stepped working surface 42 opposite the working surface 40 is used to act on the plunger of a further wire release 43 assigned to the output signal A.
  • the output signal A is thus to be produced by each of the wire releases 32, 33 or 34.
  • a force or displacement translation can be brought about by the lever 41 within certain limits by setting an offset of the points of engagement of the plungers on the working surfaces 40 and 42 indicated by the arrow 44.
  • the wire release 43 can be fastened in the carrier 31 in different positions in the direction of the arrow 44.
  • a direct action of the slide 36 by means of its working surface 38 on the wire release 43 can also be provided by omitting the lever 41 and the plunger 37.
  • the inverter 50 according to FIGS. 4 and 5 in turn has a frame-like support 51 in accordance with the previously described embodiments.
  • a wire release 52 for an input signal E and a further wire release 53 for forwarding an output signal A are attached to one side of the carrier in a parallel position.
  • the plungers of these wire triggers face work surfaces 54 and 55 of a slide 56 which is guided on the carrier 51 so as to be displaceable in the manner described above.
  • the carriage 56 can roughly correspond to the carriage 16 in FIGS. 1 and 2, it being ensured that the mutually offset working surfaces 54 and 55 can interact with the plungers by appropriately fastening the wire releases 52 and 53 on the carrier 51.
  • the carriage 56 On its side facing away from the working surfaces 54 and 55, the carriage 56 in turn has a plunger 57 which bears against a working surface 60 of a lever 61 which can be pivoted about a hinge pin 62 and which is under the action of a return spring 63. The force of this spring thus loads both plungers of the wire releases 52 and 53 in the basic position according to FIGS. 4 and 5.
  • the switchgear contains three low-voltage circuit breakers 70, 71 and 72, of which the circuit breakers 70 and 71 are slidably guided in slide-in carriers and can accordingly assume an operating position and a test position.
  • the doors of the switch cells, in which the slide-in supports for the circuit breakers 70 and 71 are located, are also indicated schematically and designated 73 and 74.
  • Each of the circuit breakers 70, 71 and 72 has a symbolically indicated switching shaft, the positions of which correspond to the contact position of the circuit breakers are designated I for the switch-on position and 0 for the switch-off position.
  • each of the circuit breakers has a transmission element which can be acted upon mechanically from the outside and which is independent of the conventional manual control elements, for triggering the circuit breaker. These transmission elements are designated 75, 76 and 77.
  • the movable circuit breakers 70 and 71 located in the slide-in frame are provided with connection points for flexible mechanical transmission elements in the manner of wire releases, in order to be able to remove different signals for the operation and the position of the circuit breakers.
  • a signal for the switch-on position E70, a signal for the switch-off position A70, a signal for the test position T70 and a signal for the operating position B70 can be removed from the circuit breaker 70.
  • signals E71, A71, T71 and B71 are to be derived from the circuit breaker 71.
  • Further signals are derived from doors 73 and 74. To prevent manipulation, two signals are derived from different locations on the doors or the stationary cell parts that interact with them. These signals corresponding to the closed state of the cell doors are designated Z73 / 1 and Z73 / 2 or Z74 / 1 and Z74 / 2.
  • FIG. 7 contains the explanations of the circuit symbols used as well as the assignment and properties of the connections within the circuit diagram.
  • a comparison with FIG. 6 shows that a total of seven AND gates U1, U2. U3, U4, U5, U6, and U7 are present, as well as two inverters, each 11 and 12, and two OR gates 01 and 02.
  • FIG. 7 it can be seen that the connections between the circuit breakers 70, 71 and 72 and between the cell doors 73 and 74 and the above-mentioned logical arrangements are designed for a different actuation frequency in accordance with the stresses that occur.
  • FIG. 6 shows which connections are effective for the operational safety of the switchgear and which of the connections are effective for personal safety.
  • the circuit breaker 70 is in the operating position and is switched on. Furthermore, the circuit breaker 71 is also in the operating position. Then the AND gate U1 takes effect and supplies an output signal to the AND gate U2. The signal E70 for the switch-on position of the circuit breaker 70 is present at this, so that a switch-off signal is now given to the actuating element 77 of the circuit breaker 71 by the AND gate U2. The circuit breaker 71 can therefore not be switched on. Such an interlock may be desirable, for example, when the circuit breaker 70 is the main feed switch and the circuit breaker 71 is the emergency feed switch.
  • the circuit breaker 72 has the function of a tie switch which allows two busbar systems to be connected to one another.
  • the busbar systems must not be coupled in view of the lower load capacity of the emergency feed switch.
  • the switch-off signal A70 of the circuit breaker 70 and the switch-on signal E71 of the circuit breaker 71 are supplied to the OR gate 02, the output variable of which acts on the actuating member 77 of the circuit breaker 72. If one of the signals A70 and E71 is present, the circuit breaker 72 cannot be switched on.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Mechanical Control Devices (AREA)
  • Breakers (AREA)

Claims (10)

1. Dispositif pour réaliser la combinaison logique de signaux mécaniques (E, E1, E2, E3, E1/1, E1/2, E2/1, E2/2), qui sont disponibles sous la forme de courses de réglage limitées, pour l'obtention d'au moins une grandeur de sortie (A, A1, A2) à partir d'une ou plusieurs des grandeurs d'entrée, caractérisé par le fait que des poussoirs (15) associés aux grandeurs d'entrée (E, E1, E2, E3, E1/1, E1/2, E2/1, E2/2) et aux grandeurs de sortie (A, A1, A2) sont disposés en étant parallèles entre eux dans l'espace et qu'un coulisseau (16; 36; 56) guidé de manière à être également déplaçable parallèlement au dispositif (18) d'entraînement en translation des poussoirs (15), est prévu pour réaliser la transmission de force entre les poussoirs (15).
2. Dispositif suivant la revendication 1, caractérisé par le fait que le coulisseau (16; 36; 56) est guidé sur un support (2; 31; 51), qui possède des ouvertures (13) pour des organes de guidage (12) des poussoirs (15).
3. Dispositif suivant la revendication 1, caractérisé par le fait que pour l'obtention d'une combinaison logique ET, au moins un poussoir (15) est guidé sur le coulisseau (16) prévu pour un premier signal d'entrée (E1/1, E1/2) et qu'approximativement en vis-à- vis de ce poussoir est disposé au moins un poussoir guidé sur le support (2) et prévu pour un signal de sortie (A1, A2), et que le coulisseau (16) possède, pour son chargement par un autre signal d'entrée (E2/1, E2/2), une surface de travail (21) pour au moins un poussoir (15), qui est également guidé sur le support (2).
4. Dispositif suivant la revendication 1, caractérisé par le fait que pour l'obtention d'une combinaison logique OU, le coulisseau (36) possède une surface de travail (35) pour deux ou plusieurs poussoirs (15) pour des signaux d'entrée (E1; E2; E3) ainsi qu'une autre surface de travail (38) pour un poussoir (15) transmettant le signal de sortie (A).
5. Dispositif suivant la revendication 1, caractérisé par le fait que pour l'obtention d'un signal (A) inversé logiquement, respectivement un poussoir (15) prévu pour un signal d'entrée (E) et un poussoir prévu pour un signal de sortie (A) sont disposés côte-à-côte et que le coulisseau (56) possède une surface de travail (54, 55) pour chacun des poussoirs (15) et est chargé par la force d'un ressort (63).
6. Dispositif suivant l'une des revendications 1 à 4, caractérisé par le fait qu'entre le coulisseau (56) et le poussoir (15) prévu pour le signal de sortie (A) est disposé un levier (61) qui est monté pivotant et influe sur le rapport de transmission entre les grandeurs d'entrée (E) et les grandeurs de sortie (A).
7. Dispositif suivant la revendication 1, caractérisé par le fait que les poussoirs (15) font partie de déclencheurs à câbles (3, 4, 5, 6, 7, 8; 32, 33, 34; 43; 52, 53), dont les éléments filetés (12) sont fixés dans des ouvertures (13), prévues à cet effet, du support (2; 31; 51).
8. Dispositif suivant l'une des revendications précédentes, caractérisé par son application dans une installation de coupure électrique pour l'obtention de dépendances, du point de vue de la technique de sécurité, entre des appareils de coupure (70, 71, 72) et/ou des organes de terminaison ou de fermeture (73, 74) d'espaces ou de cellules d'installations contenant des appareils de coupure (70, 71).
9. Dispositif suivant les revendications 6 et 7, caractérisé par le fait que le support (2) fait partie d'un boîtier qui possède des dimensions uniformes pour la réalisation de l'appareil en tant que circuit ET (1), circuit OU (30) ou inverseur (5), et possède des ouvertures pour sa fixation en tant qu'appareil individuel ou pour sa fixation en commun dans le cas d'un montage par couples ou multiple.
EP87730025A 1986-03-27 1987-03-12 Disposition pour la liaison logique de signaux mécaniques Expired - Lifetime EP0239525B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3611020 1986-03-27
DE19863611020 DE3611020A1 (de) 1986-03-27 1986-03-27 Anordnung zur logischen verknuepfung mechanischer signale

Publications (2)

Publication Number Publication Date
EP0239525A1 EP0239525A1 (fr) 1987-09-30
EP0239525B1 true EP0239525B1 (fr) 1990-09-26

Family

ID=6297745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87730025A Expired - Lifetime EP0239525B1 (fr) 1986-03-27 1987-03-12 Disposition pour la liaison logique de signaux mécaniques

Country Status (6)

Country Link
US (1) US4788453A (fr)
EP (1) EP0239525B1 (fr)
JP (1) JPS62232011A (fr)
BR (1) BR8701376A (fr)
DE (2) DE3611020A1 (fr)
IN (1) IN165090B (fr)

Cited By (1)

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CN104272539A (zh) * 2012-03-26 2015-01-07 德恩及索恩两合股份有限公司 用于电子装置、尤其是用于过电压放电器的故障指示装置

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DE4439746C1 (de) * 1994-10-31 1996-04-04 Siemens Ag Auswertungsgerät für ein System zur gegenseitigen Verriegelung von Leistungsschaltern
DE19508808C1 (de) * 1995-03-06 1996-09-19 Siemens Ag Mechanisches UND-Glied zur gegenseitigen Verriegelung von Leistungsschaltern
US5814777A (en) * 1996-03-29 1998-09-29 Siemens Energy & Automation,Inc. Cable interlock system for circuit breakers
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FR2807224B1 (fr) * 2000-03-28 2003-06-06 Bull Sa Boitier de distribution de tension secteur pour appareils electroniques
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CN103835586A (zh) * 2012-11-22 2014-06-04 高瞩宇 机械逻辑器件及其机械数码输入装置及其应用
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Publication number Priority date Publication date Assignee Title
CN104272539A (zh) * 2012-03-26 2015-01-07 德恩及索恩两合股份有限公司 用于电子装置、尤其是用于过电压放电器的故障指示装置
CN104272539B (zh) * 2012-03-26 2016-08-24 德恩及索恩两合股份有限公司 用于电子装置的故障指示装置

Also Published As

Publication number Publication date
IN165090B (fr) 1989-08-12
DE3611020A1 (de) 1987-10-01
BR8701376A (pt) 1987-12-29
JPS62232011A (ja) 1987-10-12
JPH033244B2 (fr) 1991-01-18
DE3765152D1 (de) 1990-10-31
EP0239525A1 (fr) 1987-09-30
US4788453A (en) 1988-11-29

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